请教这个问题：MySQL Connection Error: (2002) php_network

请教这个问题：MySQL Connection Error: (2002) php_network_getaddresses

来源：7-4 在swarm集群里通过service部署wordpress

yjcia

2018-05-07

阿里云环境

1.mysql

docker service create --name mysql --env MYSQL_ROOT_PASSWORD=root --env MYSQL_DATABASE=wordpress --network demo --mount type=volume,source=mysql-data,destination=/var/lib/mysql mysql

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overall progress: 1 out of 1 tasks

1/1: running [==================================================>]

verify: Service converged

2.wordpress

[root@iZ2zebnlswk1d44x5zohfoZ ~]# docker service create --name wordpress -p 8089:80 --env WORDPRESS_DB_PASSWORD=root --env WORDPRESS_DB_HOST=mysql --network demo wordpress

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overall progress: 1 out of 1 tasks

1/1: running [==================================================>]

verify: Service converged

3.docker service logs wordpress

MySQL Connection Error: (2002) php_network_getaddresses: getaddrinfo failed: Name or service not known

连接异常！

补充一下：

root@iZ2zebnlswk1d44x5zohfoZ ~]# docker service ls

ID NAME MODE REPLICAS IMAGE PORTS

6dy11svkuz8o mysql replicated 1/1 mysql:latest

qwo3b489lkql wordpress replicated 1/1 wordpress:latest *:8089->80/tcp